project idea from the experience of chemistry olympiad/ joint school science exhibition
TRANSCRIPT
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Project Idea
From the experience of Chemistry Olympiad/ Joint School Science Exhibition
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Chemical Lunch Box
• Self-heating lunch box• Exothermic reactions
• Iron, oxygen and water• Supersaturated solution, e.g. sodium thi
osulphate pentahydrate• Calcium oxide and water
• Safety
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New Century Materials
• Compare polystyrene lunch box and biodegradable lunch box
• Compare wool and superwarm (poly-texapore)
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Investigative study on polystyrene lunch box and biodegradable one
• Compare• Degree of complete combustion• Action on heat/ conc. Acid• Biodegradability• Effect of sunlight
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Investigative study on wool and superwarm (polytexapore)
• Compare• Ability to keep warm• Stretching ability• Resistance to burn• Ability to absorb water
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Amazing Miracle
• Use milk in making• Plastic• Glue• Invisible glove• Photographic film• Fire resistant paint
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Toilet Save Our World
• Prepare cellulose acetate• Used to prepare a membrane for
reverse osmosis• To filter sea water to water with
lower salinity • Use for cleaning & irrigation
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Home Chemistry
• Ketchup to clean the copper coins• Use soda, aluminium can to clean silv
er plate
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Functions of teacher
• Introduce the project and gives some initial idea
• Arrange time for discussion, doing expt and correct for report
• Training their presentation
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Resources:
• Journal of Chemical Education• http://www.twingroves.district96.k12.
il.us/ScienceInternet/ChemTopics.html
• http://members.ozemail.com.au/~macinnis/scifun/projects.htm
• Look around